These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
It's Short, so It Sucks : Most of the poor reviews the game received were not due to the gameplay, which seemed effective enough, but with only five quick courses, you could cap the game off in a pretty brief sitting.
Narm: Did the lyrics to "Super Sonic Racing" really need to use the word "everybody" 11 times in a row? And pronounce it VERY strangely the 11th time?
So Bad, It's Good: The lyrics to every single song. The music itself is also strangely unfitting given the racing theme of the game, and it's awesome.
YMMV examples regarding the Tails Doll and its mythos
Complete Monster: Creepypasta turned The Tails Doll into a serial killer monster who is said to reside in Sonic R. Upon being summoned with a curse, the Tails Doll more often than not comes out from the game to murder said summoner in a gruesome fashion. It drives its victims to trauma and suicide by murdering their family and friends, and often slowly turns its victims insane with the song "Can You Feel The Sunshine?" Other depictions of it have it enslaving the summoner or flat-out coming to them and killing them, even if it hadn't been summoned with the curse beforehand. Unlike other Creepypasta beasts such as the Rake or the Slender Man who's actions only serve to make them enigmatic, there's no mistaking the Tails Doll for anything less than a brutal, sadistic nightmare of a doll.